Frame for supporting boxes



FIG. 1 is a perspective view of a frame for supporting boxes showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof; and,

FIG. 8 is a top, front, and right side perspective view thereof. The broken-line disclosure of the two dispensing boxes are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a frame for supporting boxes, as shown and described. 